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BS 161 EXAM 3 (ACTUAL EXAM) WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST 2024 ALREADY GRADED A+

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BS 161 EXAM 3 (ACTUAL EXAM) WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST 2024 ALREADY GRADED A+

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  • August 19, 2024
  • 25
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • BS 161
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BS 161 EXAM 3 (ACTUAL EXAM) WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST 2024 ALREADY GRADED A+


What molecule within the photosystem II supplies electrons to the ETC?
- ANSWERS-Chlorophyll



What is the source of energy that provides the boost for electrons
during photosynthesis? - ANSWERS-light



CDKs are important in the regulation of the cell cycle. They carry out
their function by:

1) degrading cyclin proteins

2) adding phosphate groups to proteins

3) preventing the progression of one stage of the cell cycle to the next

4)removing phosphate - ANSWERS-Adding phosphate groups to
proteins

,Which major checkpoint delays the cell cycle when DNA replication is
incomplete?

1) G1 checkpoint

2) M checkpoint

3) G2 checkpoint G1, G2, and M checkpoints

4) G2 checkpoint - ANSWERS-G2 checkpoint



Which of the following is TRUE if a cell has a mutation in the p53 gene
such that the p53 protein is no longer able to be phosphorylated?

1) The kinase activity in the nucleus would decrease

2) the cell would arrest

3) the cell would proceed through the cell cycle even in the presence of
DNA damage

4) the amount of cytoplasmic p53 would increase - ANSWERS-The cell
would proceed through the cell cycle even in the presence of DNA
damage



Kinase - ANSWERS-an enzyme that catalyzes the transfer of a
phosphate group from ATP to a specified molecule.



CDK - ANSWERS-cyclin dependent kinase

, S phase - ANSWERS-The synthesis phase of the cell cycle; the portion of
interphase during which DNA is replicated.



M phase checkpoint - ANSWERS-chromosomes have attached to
spindle apparatus, chromosomes have properly segregated and MPF is
absent



Cytokinesis - ANSWERS-division of the cytoplasm to form two separate
daughter cells



G2 checkpoint - ANSWERS-The cell checks to make sure the DNA is
copied correctly



G1 checkpoint - ANSWERS-checks for cell size, nutrients, growth factors
and DNA damage



cell cycle - ANSWERS-series of events that cells go through as they grow
and divide



G protein - ANSWERS-A GTP-binding protein that relays signals from a
plasma membrane signal receptor, known as a G protein-coupled
receptor, to other signal transduction proteins inside the cell.

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